Process of making chain-links.



J. M. DODGE.

' PROCESS OF MAKING 0mm LINKS.

APPLIOATION FILED JAN. 17, 1906.

Patented June 22, 1909 figimessw 012%? W UNITED STATES PATENT OFFIQE.

JAMES M. DODGE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO LINK-BELT COMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS. I

PROCESS OF MAKING CHAIN-LINKS.

Specification of Letters Patent.

Patented June 22, 1909.

Application filed'January 17, 1908. Serial No. 411,339

To all whom it may concern:

Be it known that 1, JAMEs M. DODGE, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certaln Improvements in the Process of Making Chain-Links, of which the following is a specification.

- The object of my invention is to make an open rectangular detachable chain link from L0 wrought metal rods or shapes welded together, as fully described hereafter. .In the accompanying drawing ;Figure 1, 1s a perspective view of a completed chain link made in accordance with my invention;

Fig. 2, is a'longitudinal sectional view of the link on the line 22, Fig. 1; Fig. 3, is a detached erspective view of the open link section efore welding; Fig. 4, is a detached perspective view of the hook section before O'Welding; Fig. 5, is a perspective view of the x rod or shape from which the hook sections are cut; Fig. 6, is a view showing the rod from which the link sections are bent; and Fig. 7, is a view showing the method of applying attachments to the links.

Open rectangular detachable chain links have heretofore been made in a single piece and of malleable iron, and great care must be exercised in manufacturing these links so 3 as to detect the presence of any blow-holes or other defects in the castings before they are used. In making the link from wrought metal rods or shapes, the above defects are entirely avoided and if the weld is properly '5 made a very stron link is the result and one that isfree from aws or other defects.

A is the open rectangular body portion of the link having side and end bars and made from a rod, as illustrated in Fig. 6, bent at 40 the points a: so that the abuttin ends a, a ,will be at the point where the hook B is welded to the link. The rod is preferablyflattened or grooved at a at each end so that when the parts, of the link are assembled the grooved portions of the link will form the rearwall of the socket. The hook section B, Fig. 4, is also preferably made from arod of rolled shape, Fig. 5; the rod being rolled with a longitudinal groove b therein to form the socket and having a concave portion 6 to fit the body portion of the link. The rod is cut in lengths equal to the wldth of hook desired; the hook being shaped to roperly engage the cross bar of an adLonnng 5 ink. The parts are united: prefera ly by 'joint.

depressions can be made either after the link has been bent into shape, as in Fig. 1, or in. the blank, as shown in Fig. 6.

An attachment of any suitable shape may the electricallywelding process, which will be secured to the link A by electric or other welding, as illustrated in Fig. 7, in which is shown a fiat attachment I) having a concavep ortion dshaped to fit against the retarded side member of the link A. Thus the links can be carried in stock and any suitable at-- present malleable iron links now universally used.

The links can be made of any size desired. and the hook sections can be readily'rolled' or drawn in lengths and cut as required.

' I claim 1. The recess herein described of making a detachable chain link of the class specified, said process consisting in bending a rod to the desired shape to form a body portion havin side and end bars, making a hook section, fitting a portion of the hook section to one of the end bars of the body of the link, and uniting the parts by welding.

2. The process herein described 01' making a detachable chain link of the class specified, said process consisting; in bending a rod to the desired shape to form the body )ortion having side and end. bars, with the a utting ends of the rod at one end of the body portion, making a hooked section having a concaved surface, applying said concaved sur face of the hooked member to the end bar at which the ends of the rod abut, and uniting the parts by welding. I a

3. The process herein described of making links of the type described, said process c'on' x, sisting in bending a rodto form a body ioruniting the said severed sections to the bodyportion by welding, forming a chain link with k a hook at one end.

4. The rocess herein described of making a detacha'le quadrangular open'link, said process consisting in grooving a rod at each end, bending the rod to form the body portion of the link, the abutting ends of the rod being at one end and the grooves in alinement, a plying a hook section to the end bar at whic the ends of the rod abut, the grooves.

in the body portion forming part of the Wall of the socket, and uniting the parts by Weldln testimony whereof, I have signed my name to this specification, in the presence of two subscribing Witnesses.

JAMES M. DODGE.

Vitnesses Win. A. BARR, Jos. H. KLEIN. 

